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Heliopan Bay 70 ND 0.9 Filter (3-Stop)

BH #HEND.9B70 • MFR #707037
Heliopan
Heliopan Bay 70 ND 0.9 Filter (3-Stop)
Key Features
  • 0.9 Solid Neutral Density Filter
  • Increase Exposure Length
  • Bay 70 Front Filter Mount
  • Front and Rear Coating
The Heliopan Bay 70 ND 0.9 Filter is a solid ND filter providing a 3-stop exposure reduction. This 0.9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily.
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Heliopan Neutral Density Filter Overview

The Heliopan Bay 70 ND 0.9 Filter is a solid ND filter providing a 3-stop exposure reduction. This 0.9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily.

The front and rear surfaces of the filter both feature a single anti-reflection coating. Each coating helps to increase light transmission by reducing reflections, scattered light, and ghosting. Additionally, they offer protection to the filter substrate while helping to keep the glass clean for longer than uncoated glass.

This Heliopan filter is constructed from SCHOTT glass for increased optical clarity and color fidelity. It features a brass filter ring for durability as well as jamming prevention.

ND 0.9 filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.
Providing a 3-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.
Single coatings on both the front and rear offer protection to the glass and help to improve light transmission and image quality.
Constructed from SCHOTT glass for optical clarity.
Brass filter ring helps to prevent jamming and provides additional strength.
Dual mounts with Bay 70 front filter mount permits combining with other filters.

Heliopan Neutral Density Filter Specs

Filter Type
Solid ND
Density
0.9 (3-Stop)
Size
Bay 70 Bayonet 
Front Accessory Thread / Bayonet
Bay 70
Coatings
Single-Coating
Filter Material
Glass
Ring Material
Brass
Packaging Info
Package Weight
0.3 lb

Heliopan Neutral Density Filter Reviews

See any errors on this page? Let us know

does this fit a fujifilm 28mm fixed lens on a ...

does this fit a fujifilm 28mm fixed lens on a X100V digital camera?
Asked by: Jeff
The Fuji X1000V needs this adapter in order to accept 49mm filters: https://bhpho.to/31yCwqK. Once the adapter is attached, this 49mm filter can be used: https://bhpho.to/3SRomdU
Answered by: Dan W
Date published: 2022-11-01

question

Will heliopan 77mm ND 3.0 filter cause vignette with canon 16-35mm f4 on full frame?
Asked by: Barbara B.
It did not vignette on my nikor 16-35. 4.5-5.6.
Answered by: NEIL R. M.
Date published: 2018-08-28

Will this fit my 3.5F Rolleiflex ?

Will this fit my 3.5F Rolleiflex ?
Asked by: F
Yes, the Heliopan Bay 2 ND 1.5 Filter (5-Stop) is compatible with the Rolleiflex 3.5 F camera.
Answered by: Boyd H
Date published: 2023-10-02

Will this fit on a Rokinon 35mm F1.4 AF Series II ...

Will this fit on a Rokinon 35mm F1.4 AF Series II Full Frame Wide Angle (Sony E) Lens?
Asked by: Jesse
No, the Heliopan 35.5mm ND 1.8 Filter (6-Stop) is not compatible with the 67mm filter thread of the Rokinon 35mm f/1.4 AF II Lens for Sony E-Mount Cameras.
Answered by: Jonathan S
Date published: 2024-03-12

question

What is the weight of this filter?
Asked by: Mathias H.
The manufacturer does not provide the exact weight of the filter, but the shipping weight (which includes the package) is 1.6 oz. The filter itself (without the packaging) would be approximately half of that -- 0.8 oz. (23 g).
Answered by: Lisa S.
Date published: 2018-08-28

question

Dear All,I'm about to purchase a ND filter for Zeiss 15 f2.8Before purchase I wanna be sure 95mm filters do not produce any vignetting. Are Heliopan good for these purpose? Slim enough?I would by different ND and leverage on only one shipping cost! But for this purpose I have to be sure in advance that a single filter (multiple filters of course will produce vignetting) is okThx a lotM
Asked by: Anonymous
The Heliopan 95mm Neutral Density 3.0 filter will be a great choice for the Zeiss 15mm f/2.8 lens. You should not experience vignette using this ND filter on that lens.
Answered by: Heather S.
Date published: 2018-08-28

does the filter have front threads as to add a ...

does the filter have front threads as to add a lens cap?
Asked by: Bob
The Heliopan 52mm ND 3.0 has 52mm front-filter threads for other filters or a lens cap.
Answered by: Jeremy
Date published: 2021-10-24

question

I've got a few questions about this heliopan ND filter i was hoping i can get help on.1. Is this a multi-coated filter?2. Will it vignette with wide angle lenses (i.e. 16-35mm Canon f4L lens)?3. does it have front filter threads?
Asked by: Khurram
Not sure on the multi coating, but I believe they are at least single coated. This filter is relatively thin, so vignetting should not be a problem on that lens. Yes, they have front filter threads. With that said, I would recommend checking out the Firecrest ND filters. They are very thin, have front threads and they have great multi coating.
Answered by: Josh H.
Date published: 2018-08-28
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